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我正在嘗試使用BeautifulSoup v4解析文檔。我叫BeautifulSoup上note.content，這是來自Evernote的API返回的字符串：Google App Engine Python 2.7 + lxml = Unicode ParserError
soup = BeautifulSoup(note.content)
我在app.yaml文件中啓用LXML：
libraries:
- name: lxml
version: "2.3"
注意這對我的地方發展服務器。然而，當部署到谷歌的雲，我得到以下錯誤：
錯誤跟蹤：
Unicode parsing is not supported on this platform
Traceback (most recent call last):
File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.3/webapp2.py", line 1511, in __call__
rv = self.handle_exception(request, response, e)
File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.3/webapp2.py", line 1505, in __call__
rv = self.router.dispatch(request, response)
File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.3/webapp2.py", line 1253, in default_dispatcher
return route.handler_adapter(request, response)
File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.3/webapp2.py", line 1077, in __call__
return handler.dispatch()
File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.3/webapp2.py", line 547, in dispatch
return self.handle_exception(e, self.app.debug)
File "/base/python27_runtime/python27_lib/versions/third_party/webapp2-2.3/webapp2.py", line 545, in dispatch
return method(*args, **kwargs)
File "/base/data/home/apps/s~ever-blog/1.356951374446096208/controller/blog.py", line 101, in get
soup = BeautifulSoup(note.content)
File "/base/data/home/apps/s~ever-blog/1.356951374446096208/lib/bs4/__init__.py", line 168, in __init__
self._feed()
File "/base/data/home/apps/s~ever-blog/1.356951374446096208/lib/bs4/__init__.py", line 181, in _feed
self.builder.feed(self.markup)
File "/base/data/home/apps/s~ever-blog/1.356951374446096208/lib/bs4/builder/_lxml.py", line 62, in feed
self.parser.feed(markup)
File "parser.pxi", line 1077, in lxml.etree._FeedParser.feed (third_party/apphosting/python/lxml/src/lxml/lxml.etree.c:76196)
ParserError: Unicode parsing is not supported on this platform
UPDATE：
我檢查了parser.pxi，我發現這幾行代碼，其生成的錯誤：
elif python.PyUnicode_Check(data):
if _UNICODE_ENCODING is NULL:
raise ParserError, \
u"Unicode parsing is not supported on this platform"
我認爲必須有一些關於GAE的部署環境導致此錯誤，但我不知道是什麼。
更新2：
因爲BeautifulSoup會自動退到其他解析器，我結束了從我的應用程序移除LXML完全。這樣做解決了這個問題。
你有使用SDK或在生產這個錯誤？ （或兩者）。 – proppy 2012-02-20 14:49:23
只限於生產;它可以在使用localhost的SDK上正常工作。 – zzz 2012-02-20 15:06:36
我遇到了同樣的問題，並通過刪除lxml來降落。然而，Python的html.parser的寬容度非常糟糕，我的大部分頁面都不會被解析 – 2012-03-25 23:10:21